Separable snap fastener



Feb. 7, 1933. 4 P. UPHAM 1,896,873

SEPARABLE SNAP FASTENER Filed March 19, 19:51

Patented Feb. 7, 1933 UNITED STATES PATENT ovl-lolan PRESTON UPHAM, OFBBOOXLINE, MASSAG'HTJ'SIETTS, ASSIGNOB T0 'UNITED-CARB FASTENERCORPORATION, Oli? CAMBRIDGE, MASSACHUSETTS, A. CORPORATION oFmssAoHUsET'rs SEPARABLE SNAP FASTENER Application led Hatch 19, 1931.Serial No. 523,733.

My invention aims to provide improvements in separable snap fasteners.

In the drawing which illustrates a preferred embodiment of my inventionFigure 1 is a vertical section through a snap fastener installationshowing my invention and the stud being shown in elevation;

Fig. 2 is a section through the cap member and socket part prior toassembly;

Fig. 3 is a sectional view of the parts of the socket installation asthey appear when being secured together;

Fig. 4 is an under side view of the socket and cap unit; and

Fig. 5 is a plan view of the socket member, the cap being removed andshowing the attaching flange split and in expanded position.

Referring to the particular embodiment of my invention illustrated bythe drawing, I have shown a snap fastener installation which has animproved socket member and socket installation.

The stud-engaging part of the socket is pressed from, a single piece ofsheet metal and has a central boss vportion 1 open at both ends. Thisboss portion 1 is divided throughout its length by slits 2 therebydividing lthe boss into a number of yieldable fingers having their freeends bent inwardly to provide jaws 3 surrounding a. stud-receivingaperture. At that end of the boss 1 opposite the end where the jaws 3are provided the metal is bent to provide a curved wall 4 irst bentoutwardly, then downwardly and then inwardly to provide suitableclenching means. Thus, I have provided a space 5 having an annularentrance 6 into which means presented by an attaching elementmay beforced and upset by engagement with the curved surface 7 provided bythe' boss 1 and wall 4, as shown in Figs. 1, 2 and 3. From the outeredge of the entrance 6 the metal extends directly outwardly at rightangles to the axis of the boss 1 thereby providing a support engagingsurface l8. Then the metal extends directly upwardly (Fig. 2) to providea flange 9 flaring slightly outwardly and divided by a series of slits10 (Fig. 5), if desirable. This flange 9 provides means for attachingthe stud-engaging part to a cap 11.

The cap 11 may be of any suitable constructron and 1s used as anornamental or finishing piece. It may be made of any suitable material,but I have shown a ca made of a single piece of molded material, motherof pearl, or the like. The cap 11 has a central ore 12 (Fig. 2) toreceive the clencliing means and part of the boss 1. It also has anoutwardly Haring groove 13 located outside of the bore 12 and adapted toreceive the flange 9 (Fig. 2) which is upset and clenched outwardly bythe wall 14 to secure the cap 1l to the stud-engaging part, as bestshown in Fig. 3. The slits l() in the flange 9 help it to bend readilywithout breaking the cap and the groove 13 is so proportioned withrelation 'to the bore 12 that the iange 9 does not fill the groovebefore the socket part seats against the cap in the bore 12. Thisconstruction prevents the iange from breaking or cracking the cap whenmade of fragile ma'- terial.

To secure thest-ud-engaging part to a carrying medium 14, as shown inFig. 3, I use an eyelet 15 or other suitable attaching member. Theeyelet 15 has a tubular portion 16 which passes through an aperture inthe carrying medium 17 and has its free end passing through the entrance6 to the space 5 and presses against the curved surface 7, thereby toupset the end of the tubular portion in the space, as shown in Figure 1.The attaching operation is accomplished by suitable setting tools andwhen the socket installation is complete the cap 11 is the only membervisible at one side of the carrying medium. The

tubular portion 16 of the eyelet 15 surrounds the yieldable boss portion1 of the stud-engaging part and prevents over-expansion of the fingers.y

The stud installation shown in Figure 1 is of well known constructionand as it hasno particular bearing upon my invention it need not bedescribed.

The cap 11 may be attached to the studengaging part either before orafter the studvengaging part is attached to its carrying medlum.

My improved fastener installation showing the clenching means forattaching the fastener to its carrying medium and the integral means forsecuring a cap in lace in combination with a cap is simple, arable andrela- 5 tivel inexpensive to manufacture.

While I have shown and described a preferred embodiment of my invention,I do not wish to be limited thereby, because the scope of my inventionis best defined by the following claims.

I claim:

1. A snap fastener member having means for cooperative separable snapfastening enagement with another snap fastener memer, receiving andclenching means provided as an integral part of the fastener memberwhereby it may upset and attach suitable means to attach said snapfastener member to a suitable carrying medium and integral bendableattaching means provided at the outer periphery of the fastener memberwhereby a cap may be secured thereto by upsetting the bendable attachingmeans in the cap thereby to provide a finished appearance to one face ofthe fastener member.

2. A snap fastener installation comprising, in combination, a snapfastener member al car ing medium, clenching means provided by t e snapfastener member at one side of 3 the carrying medium, an attaching partlocated at the opposite side of the carrymg medium and having meansextending through the carrying medium and into clenched engagement withsaid clenching means to secure the fastener memberto the carryingmedium, a cap concealing the fastener member at that side of thecarrying medium where the clenchin means is located, clenching meanspresente by the cap and attaching means 4 provided as an integralbendable part of the fastener member and u set and clenched by theclenching means o the cap to hold the cap in posit1on.

3. A snap fastener socket installation comprising, in combination, astud-engaging member, a carrying medium 17, an attaching element 15 forsecuring the stud-engaging member to the carrying medium 17 and a capmember 11 secured to the stud-engaging -member, said stud-engagingmember having a yieldable boss 1 having ]aws 3 at its free end forengagement with a stud, a curved wa114 cooperating with a curved portion7 of the boss to provide a s ace 5 for receiving and clenching theortlon 16 of the attaching part 15 and sai stud-engaging member also yaving integral means 9 engaging a wall 14 and upset in a groove 13 inthe cap 11 thereby to secure the cap 11 to the stud-engagingv 00 part 1.

4. A snap fastener member for cooperative engagement with another snapfastener member and having integral receivin and clenching means for cooeration wi an attach- 05 ing part to secure e device to a supportingstructure, a cap having anvil and clenchin means formed as an integralpart thereof an bendable attaching means formed as a part of thefastener member and spaced outwardv

